1 files changed, 60 insertions, 0 deletions
diff --git a/ext/standard/tests/math/tanh_basic.phpt b/ext/standard/tests/math/tanh_basic.phpt
new file mode 100644
index 0000000..6b6a9df
--- /dev/null
+++ b/ext/standard/tests/math/tanh_basic.phpt
@@ -0,0 +1,60 @@
+--TEST--
+Test return type and value for expected input tanh()
+--INI--
+precision = 14
+--FILE--
+<?php
+/* 
+ * proto float tanh(float number)
+ * Function is implemented in ext/standard/math.c
+*/ 
+$file_path = dirname(__FILE__);
+require($file_path."/allowed_rounding_error.inc");
+
+
+echo "tanh .5  = ";
+var_dump(tanh(0.5));
+if (allowed_rounding_error(tanh(0.5), 0.46211715726001)) {
+	echo "Pass\n";
+}
+else {
+	echo "Fail\n";
+}
+
+echo "tanh -0.5  = ";
+var_dump(tanh(-0.5));
+if (allowed_rounding_error(tanh(-0.5), -0.46211715726001)) {
+	echo "Pass\n";
+}
+else {
+	echo "Fail\n";
+}
+
+echo "tanh 3  = ";
+var_dump(tanh(3.0));
+if (allowed_rounding_error(tanh(3.0),0.99505475368673 )) {
+	echo "Pass\n";
+}
+else {
+	echo "Fail\n";
+}
+
+echo "tanh -3  = ";
+var_dump(tanh(-3.0));
+if (allowed_rounding_error(tanh(-3.0),-0.99505475368673 )) {
+	echo "Pass\n";
+}
+else {
+	echo "Fail\n";
+}
+
+?>
+--EXPECTF--
+tanh .5  = float(%f)
+Pass
+tanh -0.5  = float(%f)
+Pass
+tanh 3  = float(%f)
+Pass
+tanh -3  = float(%f)
+Pass